US Military specThe ESS Striketeam XTO goggles offer high performance and comfortable eye protection for emergency personnel. With wide angle, distortion-free vision and ventilation systems to minimize fogging, these goggles are perfect for wearing over glasses. Features include closed cell face foam, flow-thru ventilation, and ballistic lenses with anti-fog and anti-scratch coatings. Compliant with ANSI Z87.1 and US Military spec MIL STD 662F. Replacement lenses available. MIL STD 662F